Furazolidone tablets can cause yellow urine, which is normal. Furazolidone tablets belong to the nitrofuran class of antibacterial drugs, mainly for difficult to eradicate Helicobacter pylori infection. Furazolidone tablets are yellow tablets or sugar-coated tablets, which are yellow in color after removing the coating. After taking the drug, the metabolites of the drug will cause yellow urine when excreted with urine, patients do not need to be too nervous, is a normal phenomenon. After a period of time, it will return to normal. Furazolidone tablets may cause nausea, diarrhea, dizziness, anal itching, skin rash, asthma and other adverse reactions. It should be noted that while taking furazolidone tablets, alcohol consumption is prohibited, otherwise, skin flushing, fever, abdominal pain, tachycardia, chest tightness and other disulfiram-like reactions may occur. Furazolidone tablets are prohibited for allergy to the drug ingredients, children, pregnant women and lactating women. For patients taking furazolidone tablets, they must standardize the use of medication under the guidance of a doctor, not self-medication, to avoid adverse consequences.